DEMO - Svantek SV 971A Class 1 Sound Level Meter
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Svantek SV 971A is equipped with a new measuring microphone, offering a LAeq linear measurement range from 27 to 137 dB (140 dB Peak) in a single range! The microphone’s improved design ensures even better long-term stability of microphone sensitivity.
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Description
The SV 971A is a Class 1 Sound Level Meter and Sound Exposure Meter designed for professional acoustic measurements. It features an omnidirectional, pre-polarised microphone, providing a 120 dB range from 17 dBA Leq to 140 dB Peak in a single span. The device maintains IEC 61672-1 linearity from 24–137 dB LAeq over 5 Hz to 20 kHz frequency range, covering acoustics, noise at work regulations, community noise, and environmental sound pressure levels. Built-in A, C, Z, and LF weightings, Fast, Slow, and Impulse time weightings, and IEC 61260-1-compliant octave filters allow this compact instrument to handle both low noise background monitoring and impulsive noise tasks.
Bluetooth® enables remote control and data review, while the 32 GB data logger stores high-rate time histories. The SV 971A provides up to 24 hours of battery life and maintains Class 1 accuracy from –10 °C to +50 °C and 10–90% RH, ensuring reliability in the field. Advanced functions—RT60, STIPA, audio recording, and real-time analysis—are managed by dedicated software and a mobile app. The meter is fully type approved to IEC 61672-1 Class 1. A wide range of accessories and a typical price of €2,500–€4,000 make the SV 971A a comprehensive and versatile solution for acoustic professionals.
What is a Class 1 Sound Level Meter?
A Class 1 Sound Level Meter is a precision instrument that complies with the IEC 61672-1:2013 standard and its European counterparts (such as BS EN 61672-1 and DIN EN 61672-1), ensuring strict performance requirements for linearity, frequency response, and temperature stability. These standards guarantee high accuracy and reliability, making Class 1 meters the preferred choice for professionals who require dependable sound level measurement in environments such as environmental monitoring, workplace safety, and building acoustics.
To keep that performance traceable, the meter should undergo annual ISO 17025-accredited calibration, perform routine field checks with a 94 dB or 114 dB /1 kHz acoustic calibrator whose results and timestamps are stored in the instrument’s log.
Practical Features in Use
Sound Meter with Advanced Octave Band Analysis
Real-time frequency analysis enhances sound measurement versatility.
The SV 971A performs frequency analysis in 1/1 and 1/3 octave bands, meeting IEC 61672 standards for precision and reliability. This functionality enables professionals to conduct detailed acoustic studies and implement effective noise control, while additional features—such as data logging and high-quality WAV audio recording—expand its applications across a wide range of sound measurement tasks.
Sound Level Meter App Integration
Mobile connectivity streamlines advanced acoustic assessments.
The dedicated app connects seamlessly with the SV 971A, extending the user interface and simplifying control directly from a smartphone or tablet. This integration enables calculations for sound insulation in line with ISO 16283 and supports STIPA measurements, delivering clear visual results and comprehensive reports to enhance both usability and compliance.
Comprehensive Sound Level Meter Software
Integrated firmware and software streamline sound data management.
The SV 971A features advanced firmware for precise measurements, data logging, and time history storage on SD cards, supporting core acoustic functions directly within the instrument. PC software and a mobile app further enhance data analysis and reporting, enabling professionals to visualize results, generate reports, and manage measurements efficiently—whether at the workstation or in the field.
Sound Level Meter Autocalibration
Automatic calibration simplifies preparation and enhances measurement reliability.
The SV 971A features an autocalibration function that detects the calibrator and initiates the process automatically, requiring users only to place the calibrator over the microphone. Calibration data—including date, time, and level—are logged internally, ensuring accuracy, traceability, and full compliance for every measurement session.
Accurate Noise Level Measurement
Adherence to standards and proper calibration ensures reliable results.
The SV 971A measures noise levels in compliance with ISO 9612, ISO 16283, OSHA, MSHA, ACGIH, and IEC 60268 standards, enabling professionals to perform workplace, insulation, and speech intelligibility assessments with confidence. By selecting the correct time weighting and verifying calibration before each use, users maintain the accuracy and consistency of every sound pressure measurement.
Selecting a Precision Sound Meter
Class 1 standards define superior accuracy for demanding noise measurements.
The SV 971A complies with IEC and ANSI requirements for type 1 sound meters, which ensures that the instrument meets the strictest international criteria for accuracy and performance. This compliance allows the SV 971A to exceed Class 2 requirements, making it an ideal solution for both occupational and environmental noise assessments where reliability and precision are critical. The SV 971A features a digital True RMS detector with Peak detection at a resolution of 0.1 dB.
Class 1 and Class 2 Sound Level Meters
Precision and compliance define measurement reliability.
The SV 971A is a Class 1 sound level meter certified to IEC 61672, providing the highest level of accuracy for applications where measurement integrity is critical. This distinction enables the SV 971A to deliver reliable results in environmental monitoring, legal compliance, and advanced acoustic analysis, setting it apart from standard Class 2 meters used for basic noise assessments.
Sound Level Meter for Classroom Noise Monitoring
Classroom acoustics are optimized through precise room parameter measurements.
The SV 971A meets IEC 61672 standards and measures key room acoustics parameters, including reverberation time (RT60) and speech intelligibility (STIPA), ensuring accurate evaluation of classroom environments. Integration with the dedicated app enables fast, user-friendly measurement and reporting, supporting effective improvements in educational acoustic conditions.
Applications
Sound Level Meter for Occupational Noise
Compliance with ISO, OSHA, MSHA, and ACGIH guidelines ensures reliable workplace noise assessments.
The SV 971A Class 1 Sound Level Meter meets IEC 61672 and ANSI/ASA S1.4 standards, providing the accuracy required for occupational noise measurements in line with global regulations. Equipped with a noise dose meter, it calculates noise dose and exposure, supporting industrial hygiene professionals in effective noise risk evaluations and hearing loss prevention.
Sound Meter for Building Acoustics Measurements
Compliance with ISO 16283 ensures accurate sound insulation assessments.
The SV 971A supports advanced sound insulation measurements in line with ISO 16283 standards, using new hardware and updated software for precise results. RT60 Reverberation Time and STIPA speech intelligibility assessments are integrated, enabling detailed evaluation of building acoustics. A dedicated mobile app streamlines the measurement process, making the SV 971A a versatile solution for professionals conducting sound insulation and acoustic quality studies.
STIPA Voice Level Meter
Accurate STIPA measurements ensure clear speech transmission in public address systems.
The SV 971A evaluates speech transmission indexes using the STIPA method, providing precise intelligibility assessments for public address systems in diverse environments. A dedicated mobile app streamlines measurement and reporting, while STIPA signals can be played through system loudspeakers or dedicated reference speakers to ensure reliable and repeatable results.
Sound Level Meter for Environmental Noise
Type 1 precision and wide measurement range support reliable environmental noise surveys.
The SV 971A complies with IEC 61672 for both Type 1 and Type 2 measurements, delivering the accuracy needed for environmental noise assessments and regulatory compliance. Advanced features such as real-time frequency analysis and mobile app integration enable professionals to conduct comprehensive environmental noise surveys, analyze data efficiently, and meet strict standards for noise monitoring and control.
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The SV 971A is a Class 1 Sound Level Meter and Sound Exposure Meter designed for professional acoustic measurements. It features an omnidirectional, pre-polarised microphone, providing a 120 dB range from 17 dBA Leq to 140 dB Peak in a single span. The device maintains IEC 61672-1 linearity from 24–137 dB LAeq over 5 Hz to 20 kHz frequency range, covering acoustics, noise at work regulations, community noise, and environmental sound pressure levels. Built-in A, C, Z, and LF weightings, Fast, Slow, and Impulse time weightings, and IEC 61260-1-compliant octave filters allow this compact instrument to handle both low noise background monitoring and impulsive noise tasks.
Bluetooth® enables remote control and data review, while the 32 GB data logger stores high-rate time histories. The SV 971A provides up to 24 hours of battery life and maintains Class 1 accuracy from –10 °C to +50 °C and 10–90% RH, ensuring reliability in the field. Advanced functions—RT60, STIPA, audio recording, and real-time analysis—are managed by dedicated software and a mobile app. The meter is fully type approved to IEC 61672-1 Class 1. A wide range of accessories and a typical price of €2,500–€4,000 make the SV 971A a comprehensive and versatile solution for acoustic professionals.
What is a Class 1 Sound Level Meter?
A Class 1 Sound Level Meter is a precision instrument that complies with the IEC 61672-1:2013 standard and its European counterparts (such as BS EN 61672-1 and DIN EN 61672-1), ensuring strict performance requirements for linearity, frequency response, and temperature stability. These standards guarantee high accuracy and reliability, making Class 1 meters the preferred choice for professionals who require dependable sound level measurement in environments such as environmental monitoring, workplace safety, and building acoustics.
To keep that performance traceable, the meter should undergo annual ISO 17025-accredited calibration, perform routine field checks with a 94 dB or 114 dB /1 kHz acoustic calibrator whose results and timestamps are stored in the instrument’s log.
Practical Features in Use
Sound Meter with Advanced Octave Band Analysis
Real-time frequency analysis enhances sound measurement versatility.
The SV 971A performs frequency analysis in 1/1 and 1/3 octave bands, meeting IEC 61672 standards for precision and reliability. This functionality enables professionals to conduct detailed acoustic studies and implement effective noise control, while additional features—such as data logging and high-quality WAV audio recording—expand its applications across a wide range of sound measurement tasks.
Sound Level Meter App Integration
Mobile connectivity streamlines advanced acoustic assessments.
The dedicated app connects seamlessly with the SV 971A, extending the user interface and simplifying control directly from a smartphone or tablet. This integration enables calculations for sound insulation in line with ISO 16283 and supports STIPA measurements, delivering clear visual results and comprehensive reports to enhance both usability and compliance.
Comprehensive Sound Level Meter Software
Integrated firmware and software streamline sound data management.
The SV 971A features advanced firmware for precise measurements, data logging, and time history storage on SD cards, supporting core acoustic functions directly within the instrument. PC software and a mobile app further enhance data analysis and reporting, enabling professionals to visualize results, generate reports, and manage measurements efficiently—whether at the workstation or in the field.
Sound Level Meter Autocalibration
Automatic calibration simplifies preparation and enhances measurement reliability.
The SV 971A features an autocalibration function that detects the calibrator and initiates the process automatically, requiring users only to place the calibrator over the microphone. Calibration data—including date, time, and level—are logged internally, ensuring accuracy, traceability, and full compliance for every measurement session.
Accurate Noise Level Measurement
Adherence to standards and proper calibration ensures reliable results.
The SV 971A measures noise levels in compliance with ISO 9612, ISO 16283, OSHA, MSHA, ACGIH, and IEC 60268 standards, enabling professionals to perform workplace, insulation, and speech intelligibility assessments with confidence. By selecting the correct time weighting and verifying calibration before each use, users maintain the accuracy and consistency of every sound pressure measurement.
Selecting a Precision Sound Meter
Class 1 standards define superior accuracy for demanding noise measurements.
The SV 971A complies with IEC and ANSI requirements for type 1 sound meters, which ensures that the instrument meets the strictest international criteria for accuracy and performance. This compliance allows the SV 971A to exceed Class 2 requirements, making it an ideal solution for both occupational and environmental noise assessments where reliability and precision are critical. The SV 971A features a digital True RMS detector with Peak detection at a resolution of 0.1 dB.
Class 1 and Class 2 Sound Level Meters
Precision and compliance define measurement reliability.
The SV 971A is a Class 1 sound level meter certified to IEC 61672, providing the highest level of accuracy for applications where measurement integrity is critical. This distinction enables the SV 971A to deliver reliable results in environmental monitoring, legal compliance, and advanced acoustic analysis, setting it apart from standard Class 2 meters used for basic noise assessments.
Sound Level Meter for Classroom Noise Monitoring
Classroom acoustics are optimized through precise room parameter measurements.
The SV 971A meets IEC 61672 standards and measures key room acoustics parameters, including reverberation time (RT60) and speech intelligibility (STIPA), ensuring accurate evaluation of classroom environments. Integration with the dedicated app enables fast, user-friendly measurement and reporting, supporting effective improvements in educational acoustic conditions.
Applications
Sound Level Meter for Occupational Noise
Compliance with ISO, OSHA, MSHA, and ACGIH guidelines ensures reliable workplace noise assessments.
The SV 971A Class 1 Sound Level Meter meets IEC 61672 and ANSI/ASA S1.4 standards, providing the accuracy required for occupational noise measurements in line with global regulations. Equipped with a noise dose meter, it calculates noise dose and exposure, supporting industrial hygiene professionals in effective noise risk evaluations and hearing loss prevention.
Sound Meter for Building Acoustics Measurements
Compliance with ISO 16283 ensures accurate sound insulation assessments.
The SV 971A supports advanced sound insulation measurements in line with ISO 16283 standards, using new hardware and updated software for precise results. RT60 Reverberation Time and STIPA speech intelligibility assessments are integrated, enabling detailed evaluation of building acoustics. A dedicated mobile app streamlines the measurement process, making the SV 971A a versatile solution for professionals conducting sound insulation and acoustic quality studies.
STIPA Voice Level Meter
Accurate STIPA measurements ensure clear speech transmission in public address systems.
The SV 971A evaluates speech transmission indexes using the STIPA method, providing precise intelligibility assessments for public address systems in diverse environments. A dedicated mobile app streamlines measurement and reporting, while STIPA signals can be played through system loudspeakers or dedicated reference speakers to ensure reliable and repeatable results.
Sound Level Meter for Environmental Noise
Type 1 precision and wide measurement range support reliable environmental noise surveys.
The SV 971A complies with IEC 61672 for both Type 1 and Type 2 measurements, delivering the accuracy needed for environmental noise assessments and regulatory compliance. Advanced features such as real-time frequency analysis and mobile app integration enable professionals to conduct comprehensive environmental noise surveys, analyze data efficiently, and meet strict standards for noise monitoring and control.